Advances in transient-liquid-phase bonding of ultra-high temperature ZrC ceramics

Diletta Sciti; Laura Silvestroni; Laura Esposito; Kunihiko Nakashima; Noritaka Saito; Yoshinori Yamaoka; Andreas M. Glaeser

doi:10.1515/htmp-2012-0087

Advances in transient-liquid-phase bonding of ultra-high temperature ZrC ceramics

Diletta Sciti, Laura Silvestroni, Laura Esposito, Kunihiko Nakashima, Noritaka Saito, Yoshinori Yamaoka, Andreas M. Glaeser

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Full exploitation of the many attractive engineering properties of ultra-high temperature ceramics (UHTCs) requires that they can be joined. This paper explores progress in identifying joining strategies based on the use of transient liquid phases (TLPs). Wetting studies are used to explore the suitability of specific liquids for joining, while bonding studies provide the ultimate test. Sintering aids in the UHTC provide a major potential obstacle to successful joining, and dissolved impurities in the TLP can also complicate the joining process. Nonetheless, we show that well-bonding interfaces can be achieved when ZrC ceramics are bonded at 1673 K using a Ni/Nb/Ni multilayer interlayer.

Original language	English
Pages (from-to)	501-511
Number of pages	11
Journal	High Temperature Materials and Processes
Volume	31
Issue number	4-5
DOIs	https://doi.org/10.1515/htmp-2012-0087
Publication status	Published - Oct 2012

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Physical and Theoretical Chemistry

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10.1515/htmp-2012-0087

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AU - Esposito, Laura

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AU - Saito, Noritaka

AU - Yamaoka, Yoshinori

AU - Glaeser, Andreas M.

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AB - Full exploitation of the many attractive engineering properties of ultra-high temperature ceramics (UHTCs) requires that they can be joined. This paper explores progress in identifying joining strategies based on the use of transient liquid phases (TLPs). Wetting studies are used to explore the suitability of specific liquids for joining, while bonding studies provide the ultimate test. Sintering aids in the UHTC provide a major potential obstacle to successful joining, and dissolved impurities in the TLP can also complicate the joining process. Nonetheless, we show that well-bonding interfaces can be achieved when ZrC ceramics are bonded at 1673 K using a Ni/Nb/Ni multilayer interlayer.

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Advances in transient-liquid-phase bonding of ultra-high temperature ZrC ceramics

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